Vehicle frame structure



April 27 1926 J F. PRENOSIL VEHiCLE} FRAME STRUCTURE Original Filed Feb. '7. 1924 2 Sheets-Sheet 1 April 27 1926.

J. F. PRENOSIL VEHICLE FRAME STRUCTURE Original il F '74 1924 Z'SheetS-Sheet 2 Patented Apr. 27, 1926.

'uirsn STATES JOSEPH F. ERENOSII F GEORGETOWN, MINNESOTA.

VEHICLE FRAME STRUCTURE.

Original application filed February 7, 1924, Serial No. 691,210. Divided and this application filed November 13, 1924. Serial No. 749,735.

To all 107mm it may concern.

Beit-known that I, JOSEPH F. 'Pnnnosrn, a citizen of the United States of America, residing at Georgetown, in the county of Clay and State of Minnesota, have invented certain new and useful Improvements in Vehicle Frame Structures, of which the following is a specification.

This invention relates to new and useful improvements in vehicle frame structure.

An importantobject of the inventionis to provide-a vehicle frame structure which may be successfully employed for carrying agricultural implements in the form of ground or plant working elements.

A further object of the invention is to provide improved means for controlling the direction of travel of the machine so that straightrows of plants maybe followed or furrows may be formed.

Other objects and advantagesof the invention will be apparent during the course of the following description.

The-subj ect matter of thisinvention is disclosed in my copending application for beet blockers,-filed February 7, 1924, Serial No. 691,210 but is not claimed therein, the present application being a division of the said application Serial No. 691,210.

In the accompanying drawing forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a top plan view of the vehicle frame structure embodying this invention,

Figure 2 is a side elevational View of Fig. 1,

Figure 3 is a transverse sectional view taken upon lines III-III of Fig. 2,

Figure 4 is a transverse sectional View taken upon line IV-IV of Fig. 1, and

Figure 5 is a fragmentary longitudinal sectional view taken upon line VV of Fig. 1.

In the drawing, wherein for the purpose of illustration is shown the preferred embodiment of this invention, the numeral 5 designates the frame portion of the vehicle which consists of a horizontally extending inverted U-shaped rear portion 6 having the side arms 6. Connected to the rear ends of these side arms 6 is a vertically extending, tJ-shaped frame portion 7 having side arm portions '7 tothe upper ends ofwhich the diagonally extending brace arms 8 are secured vwhich extend forwardly and downwardly to be connected to the inner face of the forward ends of the side arms 6 Secured to the forward ends of the side arms 6 are the forwardly, upwardly extending angular bars 9 which are twisted at their forward ends through .180 of a circle to provide end portions 9 for the purpose of being connected to'a horizontally extending cross bar .10. Secured to the opposite side bars .9 is the substantially inverted U-shaped cross brace 11 which is positioned forwardly of the longitudinal center of the said bars 9. It is to be understood that the elements so far referred to are rigid in respect to each other.

The rear portion of the frame 5 is supported by the rear axle 12 which is journaled in the side arms 6 and carries the ground engagingwheels 13 which are suitably keyed thereto. In Fig. 4 there is illustrated a perpendicularlyextending block 1a having the axially extending integral pins 15 formed at the opposite ends thereof, as illustrated. This block'la is illustrated in Figs. 1 ant. a as having a vertically extending well 16 formed therein with a slot 17 formed in the rear facet-hereof and extending from a point spaced slightly from the bottom end of the block 114 and opening through the upper end of the said block. It will be noted that the upper axial pin 15 passes through the forward horizontal bar 10 while the lower pin passes through the front axle 18 of the vehicle. This front axle is provided with the loosely mounted front ground engaging wheels 19, as illustrated. For the purpose of bracing the lower end of the block 1e, reversely bent braces 20 are secured to the lower end thereof and extend upwardly and rearwardly to be secured to the under face of the transversely extending portion of the substantially U-shaped cross brace 11.

Mounted upon the upper axial pin 15, be-

tween the upper end of the block 14 and the brace bar 10, is an inverted U-shaped member 21 which is connected at its lower ends to the front axle 18 at points spaced inwardly from the opposite ends thereof. It is to be understood that the braces 20 will prevent the block 14 from moving in respect to the frame portion of the machine and that the axle 18 and inverted U-shaped member 21 are rigid in respect to each other, but are pivotally mounted upon the pins 15 for permitting the axle to be pivoted to steer the vehicle over the ground. In Figs. 1 and 2 there is shown a tongue 21 which is pivotally secured to the pins carried by the block 14% by means of the oppositely extending reversely bent angle brackets 22, one of which engages each of the said pins 15. There is further provided a reversely bent brace 23 which is connected to the tongue 21 at its lower end and to the upper pin 15 at its inner upper end.

Carried by the vertically extending inverted U-shaped frame member 7 is an angle bracket having a drirers seat 25 secured to the upper end thereof. For the purpose of providing means. convenient to the driver upon the seat 25, for steering the vehicle foot levers are pivotally secured to the diagenally extending brace bars 8 and are connected, intermediate their ends, to the rods 2'? which extend forwardly and are connected to the opposite sides of the inverted U-shaped member 21, as best illustrated in Figs. 1, 2 and 4.

In Figs. 1, 2 and 3, the transversely extending portion of the U-shaped horizontally extending frame part 6 is shown as being provided with a pair of upstanding spaced arms 28 which are so positioned that the space therebetween is in longitudinal alinement with the slot 17 formed in the block 1%. Loosely mounted within the slot 17 and the space between the said arms 28 is a horizontally extending driven shaft 29 haying an enlarged head 30 at its forward end which is positioned within the well 16. This shaft 25) is provided for supporting the agricultural implement to be carried by the vehicle.

It is now believed that the construction of the vehicle frame embodying this invention will be understood from the above detail description. It might be noted that the direction of travel of the vehicle may be changed laterally in either direction by pivoting the foot levers 26, whereby the front axle 18 with its rigid, inverted U-shaped member 21 will pivot independently of the remainder of the frame.

It is to be understood that the form of this invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape, size, and a1 'angenient of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described the invention, 1 claim:

in a device of the Class described, a veliiele frame including a rear axle having ground engaging wheels, a transversely extending brace bar at its forward end, and a perpendicular block rigid with respect to the frame and having axially alined pins extending perpendicularly from opposite ends thereof with the upper pin projecting through the said transverse brace bar; a front axle pivoted on the lower pin and having ground engaging wheels, an inverted U- shapes member having its transverse portion centrally pivoted on the upper pin of the block below the transverse brace bar and having its lower ends fastened to the front axle, and means for pivoting the front axle and its inverted U-shaped member in respect to the frame.

In testimony whereof I affix my signature.

JOSEPH F. PRENOSIL. 

